Relations table
Relations tables are referenced by the  hierarchy 
    RelationsTableName
      property.In Relations tables, these columns have special meanings:
| Column name | Expected Data Type | Required | Explanation | 
|---|---|---|---|
| ID | nvarchar | Yes | Contains name of the child element in the relation. | 
| ParentID | nvarchar | Yes | Contains name of the parent element in the relation. | 
| Weight | double | No | Contains weight (consolidation factor) of the relation. | 
| OrderPosition | int | No | Defines the order in which the relations are created in the hierarchy. | 
| DataSourceId | int | No | Value of this column will be set to 0 in case the row is affected by a manual editing operation. |